Regeneration (IE) [Intl. Collectors’ Edition] San Diego Comic-Con 2014 put a -1/-1 counter on

put a -1/-1 counter on each creature

The most terrifying thing about the Craw Wurm is probably the horrible crashing sound it makes as it speeds through the forest

discard it

it deals 1 damage to any target

{U}: Enchanted creature gains flying until end of turn

Regeneration (IE) [Intl. Collectors’ Edition] San Diego Comic-Con 2014 put a -1/-1 counter onSet: Intl. Collectors Edition Type: Enchantment Aura Common Cost: {1}{G} Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.) {G}: Regenerate enchanted creature. (The next time that creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.)